Commit bb682f7a authored by Cezary Rojewski's avatar Cezary Rojewski Committed by Takashi Iwai
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ALSA: hda: Expose codec cleanup and power-save functions 



With few changes, snd_hda_codec_set_power_save() and
snd_hda_codec_cleanup_for_unbind() can be re-used by ASoC drivers.
While at it, provide kernel doc for the exposed functions.

Signed-off-by: default avatarCezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20220214101404.4074026-5-cezary.rojewski@intel.com


Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 17e0c4cb

include/sound/hda_codec.h

+3 −0
Original line number Diff line number Diff line
@@ -318,6 +318,7 @@ int snd_hda_codec_configure(struct hda_codec *codec); 
int snd_hda_codec_update_widgets(struct hda_codec *codec);

void snd_hda_codec_register(struct hda_codec *codec);

void snd_hda_codec_unregister(struct hda_codec *codec);

void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec);



/*

 * low level functions
@@ -496,9 +497,11 @@ int hda_call_check_power_status(struct hda_codec *codec, hda_nid_t nid) 
#define snd_hda_power_down(codec)	snd_hdac_power_down(&(codec)->core)

#define snd_hda_power_down_pm(codec)	snd_hdac_power_down_pm(&(codec)->core)

#ifdef CONFIG_PM

void snd_hda_codec_set_power_save(struct hda_codec *codec, int delay);

void snd_hda_set_power_save(struct hda_bus *bus, int delay);

void snd_hda_update_power_acct(struct hda_codec *codec);

#else

static inline void snd_hda_codec_set_power_save(struct hda_codec *codec, int delay) {}

static inline void snd_hda_set_power_save(struct hda_bus *bus, int delay) {}

#endif

sound/pci/hda/hda_codec.c

+12 −2
Original line number Diff line number Diff line
@@ -766,6 +766,10 @@ static void codec_release_pcms(struct hda_codec *codec) 
	}

}



/**

 * snd_hda_codec_cleanup_for_unbind - Prepare codec for removal

 * @codec: codec device to cleanup

 */

void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec)

{

	if (codec->registered) {
@@ -3401,7 +3405,12 @@ int snd_hda_add_new_ctls(struct hda_codec *codec, 
EXPORT_SYMBOL_GPL(snd_hda_add_new_ctls);



#ifdef CONFIG_PM

static void codec_set_power_save(struct hda_codec *codec, int delay)

/**

 * snd_hda_codec_set_power_save - Configure codec's runtime PM

 * @codec: codec device to configure

 * @delay: autosuspend delay

 */

void snd_hda_codec_set_power_save(struct hda_codec *codec, int delay)

{

	struct device *dev = hda_codec_dev(codec);
@@ -3419,6 +3428,7 @@ static void codec_set_power_save(struct hda_codec *codec, int delay) 
		pm_runtime_forbid(dev);

	}

}

EXPORT_SYMBOL_GPL(snd_hda_codec_set_power_save);



/**

 * snd_hda_set_power_save - reprogram autosuspend for the given delay
@@ -3432,7 +3442,7 @@ void snd_hda_set_power_save(struct hda_bus *bus, int delay) 
	struct hda_codec *c;



	list_for_each_codec(c, bus)

		codec_set_power_save(c, delay);

		snd_hda_codec_set_power_save(c, delay);

}

EXPORT_SYMBOL_GPL(snd_hda_set_power_save);

sound/pci/hda/hda_local.h

+0 −1
Original line number Diff line number Diff line
@@ -135,7 +135,6 @@ int __snd_hda_add_vmaster(struct hda_codec *codec, char *name, 
#define snd_hda_add_vmaster(codec, name, tlv, followers, suffix, access) \

	__snd_hda_add_vmaster(codec, name, tlv, followers, suffix, true, access, NULL)

int snd_hda_codec_reset(struct hda_codec *codec);

void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec);

void snd_hda_codec_disconnect_pcms(struct hda_codec *codec);



#define snd_hda_regmap_sync(codec)	snd_hdac_regmap_sync(&(codec)->core)